Product Details

EARLY STRENGTH NON SHRINKAGE GROUTING MATERIAL

CGM-T80A EARLY STRENGTH NON SHRINKAGE GROUTING MATERIAL is made of special cementing material, aggregate and additives with performance of high fluidity, micro-expansion and anti-segregation. It has characters of early strength, high strength, no shrinkage, micro-expansion, self-flow and vibration-free, non-toxic, harmless, non-aging, no pollution to water quality and surrounding environment, good self-tightness, anti-rust, etc.

Item

Executive Standard / Product Specifications

JC/T986-(2005)2012

Cementitious grout

GB/T50448-2015

Technical code for application of cementitious grout

CGM -T80A

Compressive strength

(Mpa)

1d

≥22

≥20

≥40

3d

≥40

≥40

≥60

28d

≥70

≥60

≥75

Flexural strength(Enterprise standard)

(Mpa)

1d

-

-

≥7

3d

-

-

≥10

28d

-

-

≥12

Liquidity(mm)

Initial value

≥260

≥290

≥300

30min retention value

≥230

≥260

≥270

Vertical expansion rate％

3h

-

0.1-3.5

0.5

Expansion value difference between 3h and 24h

0.02-0.5

0.1

1d

≥0.02

-

0.6

Reinforcement grip strength (round steel)/MPa

28d

≥4.0

-

≥4.2

Bonding strength with old concrete / MPa(Enterprise standard)

28d

-

-

≥4.2

Corrosive effect on steel bars

NO

NO

NO

Bleeding rate％

≤1

0

0

Scope of application:

Its early strength is high so it can particular use for projects with tight requirement of construction period, especially highway expansion joints, Open within 24 hours traffic. When this product is used in civil building reinforcement, the reinforced parts can reach the required strength within 24 hours.

(Note:This product can be use at low temperature and the strength is not affected. Construction can be carried out in winter when the temperature is higher than -10 °C.)